*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
ul li{
    list-style: none;
    display: flex;
    padding: 10px 0;
    border-top:1px solid #dedede;
    border-bottom:1px solid  #dedede;
    margin: 0;
}
.list-top{
    font-weight: bold;
}
header{
    width: 100%;
    margin: auto;
    text-align: center;
    background: #ececec;
    height: 300px;
    line-height: 100px;
    padding-top: 80px;
}
.col-md-3 button{
    width: 100%;
}